Hi, the very weirdest thing ever is happening to my project in Final Cut Express.

The last couple of posts I put up here are all related to the same project that I'm working on right now. I'm finished with editing and burning the DVD. In attempting to get the best finished quality, I'm exporting from Final Cut Express using Quicktime compressor and selecting the best quality of all the options. Now one of the movies have an extremely weird audio coming out from it where there is an interview with someone. Instead of hearing the person's voice there's an odd bassy sound that actually sounds like it has a rhythm. It's not music, it isn't anything that I've ever heard so I cannot even describe it appropriately.

I went back to the audio tracks in FCE to ensure that audio from someplace else didn't end up on the timeline and in fact the timeline is clean. It only happens on that particular part of the video. When I playback right there in FCE, both video and audio are perfect.

You're right, that's not a problem caused by compression or any other filter.

That file is totally corrupted; it sounds as if it's grabbed audio from another source - or sources somewhere (somehow) and looped it on itself. I've never, ever heard such a thing nor could possibly come up with an exact cause.

I would suggest that either A) The Final Cut project itself is corrupted, which can cause an amazing array of strange problems or; B) Just the audio portion of the project has become corrupted.

It could also be caused by core OS X components that have become unstable, such as the DYLD cache, the directory and other deeper parts of the OS X foundation.

Try doing system-wide maintenance such as Onyx (run all it's maintenance routines) DiskWarrior to address the directory and also do a SAFE BOOT which will clear cache and other items and, zap your PRAM. If you're not sure how to do these things the routines have been posted here on the forum.

If after doing system cleanup maintenance you're still having the issue the only suggestion I have is to start with a fresh FCE project and rebuild it.

Wow!! Actually, "I guess" is the beginning words of the person whose speech is corrupted. There is music in the entire program yes, not songs, but instrumentals and only at this 21st minute of the video does the audio get corrupted. He's saying "I guess it's a favour...having a small part to play in welcoming..."

I appreciate the effort you've taken with this.

I'm in the process right now of applying your suggestions. Will make a response in a couple minutes. I've also downloaded Onyx and Maintenance 1.3.5 from Apple downloads.

Hi, I downloaded the FCS Maintenance software and cleaned up the cache. Then, I downloaded Onyx and Maintenance 1.3.5 and it recommended a back up of all of the files using Time Machine before doing anything, however, I don't have an external hard drive that's formatted for the Mac, so I halted that operation.

My next step will be to do over the project, however, I'm waiting on word on whether there are any editing changes to make, before I do it over. When it's done over and exported, then I'll know if the audio is clean throughout.

If you've downloaded Onyx you don't need Maintenance; the routines in Maintenance are part of the Onyx suite.

While it's always a good idea to backup your system before performing any system-wide maintenance I can tell you that it's highly unlikely that you'll end up with any issues after running Onyx and all it's cleaning/maintenance routines.

Okay. I ran all of the Onyx features. The audio at that particular point still gets corrupted on export. It takes on a different type of sound to the one that I posted above, but the location and duration of the corrupted part is identical. So, I'll have to rebuild the project. Thanks for the advice, it's much appreciated.

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